Exhibit 24.26 POWER OF ATTORNEY We, the undersigned officers and directors of ACC of Wisconsin License LLC (hereinafter "the Company"), hereby severally constitute Everett R. Dobson, Bruce R. Knooihuizen and Ronald L. Ripley, and each of them, severally, our true and lawful attorneys-in-fact, will full power to them and each of them to sign for us, and in our names as officers or directors, or both, of the Company, a Registration Statement on Form S-4 and any and all amendments thereto (include post-effective amendments), granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and to perform each and every act and thing requisite and necessary to be done in and about the premises, as full to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof. /s/ Everett R. Dobson President and Chief Executive April 20, 2001 - -------------------------------------------- Officer (Principal Executive Everett R. Dobson Officer) and Manager /s/ Bruce R. Knooihuizen Treasurer Chief Financial April 20, 2001 - -------------------------------------------- Officer (Principal Financial Bruce R. Knooihuizen Officer) and Manager /s/ Trent LeForce Corporate Controller (Principal April 20, 2001 - -------------------------------------------- Accounting Officer) Trent LeForce /s/ Joseph E. Stumpf - -------------------------------------------- Vice President and Manager April 20, 2001 Joseph E. Stumpf - -------------------------------------------- Vice President and Manager April __, 2001 Tamara A. Bramel